Gauge



Jan. 6, 1925.

O. SCHLAUPITZ GAUGE Filed June 25, 1925 2 Sheets-Sheet l l I l I I Jan.6, 1925. 1,521,651

- O. SCHLAUPITZ GAUGE Filed June 25, 1925 2 Sheets-Sheet 2 /3 Inverz or:

of clearness,

Patented Jan. 5,1 1925.

UNITE oswALn SCHLAUPITZ, or CANTON, oi-iro, essIGNoR To THE vTIivIKRNROLLER BEAR- ING COMPANY, OF CANTON, OHIO, A CORPORATION OF OHIO.

GAUGE.

Application filed June 25, 1923. Serial No. 647,553.

To all whom, t may conce/ra.'

Be it known that I, OswALo Sci-iLAUrrrz, a cit-izen of the UnitedStates, and a resident of the city of Canton, inthe county of Stark andState of Ohio, have invented a new and useful Improvement in Gauges, ofwhich the following is a specification.

My invention relates to gauges that will determine the diameter and theroundness and parallelism of the surfaces of circular cavities, such asthe cylindrical bores of in'- ner bearing members for roller bearingsand the like and it has for its principal object to devise a gauge thatis provided with detachable and interchangeable -woi'k supporting means,whereby one gauge maybe used for gagiiig articles of various sizes. Theinvention consists 'principally .in providing a gauge with a detachablework supporting member, which may be replaced by a different worksupporting` member adapted to accommodate inner bearingmembers or thelike of a different size. The invention further consists in the partsand in the combinations and arrangements of parts hereinafter describedand claimed.

In the drawings7 which forni part of this specification and wherein likereference characters indicate like pai-ts wherever used,

Fic'. 1 is a to lan view of a frauoe eine P P. b b bodying my invention,certain parts at the top of the gauge being omitted for the sake Fig. 2isa side elevation,

Fig. 3 is an end elevation; and y Fig. 4l is a sectional view ont-heline 4--l in Fig. 2. A

rlhe base 1 of the gauge has an upwardly extending frame portion 2, inthe top of which is secured a hollow housing 3. One face 4t of saidhousing is in the form of an arc, and to it is secured an arcuate scaleplate 5. Pivotally mounted in said housing 3 is av shaft 6 to which issecured a pointer 7 for cooperating with the graduated scale. Said shaft6 is provided with a pinion 8 that meshes with a segment gear 9 on theupper end of a lever 10 whose lower end isl ypivotally secured in thehousing 3. rlhe shaft G is provided with-a weight 11 to balance thepointer 7.

rlhe back 12 of the hollow liousingdias beveled et ge portions 13. Theframev 2 has a jaw 14 'that' is beveled or undercut t0 Cooperate withone beveled edge portion 13 ,of the housing, and secured to the otherside of the frame is a plate 15'tliat has a jaw 16 that is'shaped orundercut to'cooperate with the other beveled edge 13 of the housing.rlhus the housing 3 is heldin the frame 2 by a dove-tail connection.Thel plate is secured tothe frame by 'means ofscrews l17 and thesescrews are tightened.sutliciently to hold thev housing against sliding',but to permit movement lthereof if sufficient force is applied toovercome they frictional engagement of the hpusing with the jaws of thef frame and p ate.

Secured to the` top of the liousing'as by a screw 18 is an arm 19 lthatextends over the top of the frame 2. Passing through a (hole in said arm19 is the unthreaded shank portion 2O of a screw 21 that is threaded linto the top ofthe frame. The screw is provided :with a collar 22beneath the arm; so that the arm' is held between the collar 22 and thehead of the screw 21 and is incapable of longitudinalmovement relativetofthe screw. Y. Preferably the frame 2 is provided witl a` transversehole in which is mounteda plug 23 that has a threaded hole `therethroughthat receives the threaded portion of the Yscrew 21. Thev plug 23 may berevplacedwith a new plug when'the threads the handle 26 the screw 24 ismade'to force i the pla-te 15 closer to the frame 2 than the position inwhich it is held by the screws 17 labove mentioned.'y This clamps thehousing -lirmly in place and prevents nio-vement thereof after thedesired adjustment has been obtained. i Y A Securedv to the lower end 2Tof the housing underneath the lever 'lOis a. hollow member 28 in whichismounted a plunger shell 29. Slidably mounted in said shell 29 is a'pin vin the front end of the lever arm.

30 that has a reduced upper portion 3l that Between the plug 32 and thelower end of' the pin 30 is al spring' 34 that tends to keep the pin 30in its uppermost positionin the shell 29. V The upper end of the shell29 is provided with projecting lugs 35 so that it is prevented fromdropping out of the bore of the hollow member. Y

Thebase l is providedadjacent to the end of the dependng port-ion of thehousing 2 with a split'clamp member 36 in the bore of which is mountedthe end of a hollow work receiving and supporting member 37. The workreceiving member is provided with a key 38 that lits in a slot 39 in theclamping member so that the work recelv-` ing member is held againstrotary movement. The free ends of the clamp member are provided withalining threaded holes in which are disposed suitable'screws 40 bymeansv of which the parts of the clamp member may be tigitened up tohold the work receiving member 37 in position. Y Y

Aside from its removability, the work receiving member and its containedmechanism are similar in construction and operation to those shown in myPatent No. 1,43556665, dated November 14, 19227 for indicating gauge, towhich referencefis hereby made. a

Located within the bore of the supporting member 37 andextendingtherefrom to a` point beneath the plunger shell isa lever arm4l. The lever arm lis provided at its front endV with an elongatedvertical notch 42 adapted to receive a vertically disposed cylindricalcontact pin 43 and a horizontally disposed cylindrical fulcrum stud 44.The contact` pin is of reduced width midway of its length to lit withinthe notch of the lever arm and'is removably held therein by means of ahorizontal screw 45. The contact pin 45 has a free sliding fit in atransverse bore 4G in the supporting` member, said bore being disposedwith its axis vertical and intersecting the horizontal bore of thesupporting member.

The fulcrum stud 44 is mounted in he axial bore of the supporting memberbetween the contact Ypin 43 and the front end of said member and has areduced portion adapted to be embraced by the notch formed The lever arm4l is pivotally secured to the fulcrum stud 44 by Ameans of a removablepivot screw 47 which extends horizontally through the interlittingportions of said lever arm and said stud. The contact pin is adapted tocontact with the surface of the work at its lower end only and said endis preferably curved to conform tothe radius of the supporting member.

' ed out.

rlhe free end 48 of the lever Yarm 4l in -theinoperative positionthereof is supported on the upper end of a vertical stop pin 49. Thestop has a threaded head portion 50 which is threaded into the base.rl'hus the positionV of the lever may be changed by turning the stoppin.

Mounted von a rod 51 that is dfsposed in a bore in the base is an arm52. The rod is capable of rotary andV lengthwise movement and may beheld in any desired position by means of a set screw 53. e Y

The cone 54 or the like to be. gaged .is placed on the work receivingmember 3.7 and moved back and forth and rotated so that all portions ofthe bore thereof may be gaged.V The arm52 is set so that the cone willabut against it before moving clear of the contact pn 43. A large doublecone is shown in the drawings. lf, a small single cone is to be gaged,the stop arm y52 will be moved away from the base so as to prevent thecone from slipping past the contact pin.

lhcn it is desired to gauge cones of a different diameter, the workreceiving member 37 is removed from the base and a different workreceiv'ng member .is inserted in place. The end of the lever 4l of thework receiving member rests on a stoppin 49 as above pointrlhe stop pinis adjusted so that the lever is held in such positiony that the end ofthe contact pin projects below the work receiving member a distance thatrepresents the bore of a cone that is very sl'ghtly above the maximmnlimits. T he object of this position is to reduce to as small an amountas possible the movement required of the contact pin to get inside ofthe bore'of a cone and consequently to reduce to as small an amount aspossible the travel of the pointer.

After a new work receivingmember has been put in position, a master coneis placed thereon and the housing raised or lowered until the pointerpoints exactly to zero on the scale. The housing is then clamped inplace and the gauge is ready for work.

lf the pointer 7 is moved so that it reaches the end of the slot in thehousng, any further movement ofthe pointer is taken up by the spring 34.rlhus damage `to the indicating mechanism is prevented.

The gauge hereinbefore described has numerous advantages. It makes itpossible to gauge cones of various sizes with one gauge, thus greatlyreducingthe number of gauges that are required to be kept on hand. Theadjustable stop for the work makes the gauge easy to operate andprevents the work from .slipping ofll the contact pin. The plungerconstruction prevents damage to the working parts in the .case of a conethat. is greatly ofi' size.

Obviously, a different form of indicating' mechanism fr in that shown inthe drawing may be used and numerous other changes may be made withoutdeparting from the invention and I do not wsh to be limited to theprecise construction shown.

lVhat I claim is:

l. A gauge comprising a base, a clamp member on said base, said clampmember having a bore and being split the length of said bore, a workreceiving member having a portion adapted to extend into the bore ofsaid clamp member, and screws extending through holes provided thereforin the marginal portions of said clamp member on either side of thesplit therethrough, whereby said clamp member may be tightened to holdsaid work' receiving member or loosened to ,releaseV the same.

2. A gauge comprising a work support, a lever mounted therein andprojecting therefrom, said lever having a contact member in positionl tobe engaged and actuated by the work being gauged, a; gauging andindicating mechanism having a portion contacting with said lever andmeans for bodily shifting said gauging and indicating mechanismyrelatively to said work support.

r3. A gauge comprising a work support, Va lever mounted therein andprojecting therefrom, said lever having a contact member in position tobe engaged and actuated by the work being gauged, a gauging andindicat-y ing mechanism having a portion contacting with said lever .andmeans for bodily shifting said. gauging and indicating mechanismrelatively to said work support and for securing it in desired position.

4. In a gauge, a frame having an undercut jaw portion along one edge, aplate secured to the opposite edge of said frame and having acounterpart undercut aw portion, a housing having beveled edges that itin the jaws of said frame and of said plate respectively and means fortightening and loosening said plate.

5. A gauge comprising a frame, a housing secured thereto, a gaugingmechanism in said housing, said housing having a projecting portionoverhanging said frame and a screw mounted in said projecting portion soas to be capable of rotation but held against eiidwise movement, saidscrew extending into a threaded hole in said frame, whereby said housingmaybe moved by turning said screw. y y l 6. A gauge comprising a frame,a housing secured thereto, a gauging mechanism in said housing, saidhousing having a projecting portion overhaiigiiig said frame, a screwlmounted in said projecting portion so as to be capable of rotation butheld againstl endwise movement, said screw extending into a threadedhole in said frame, whereby said housing may be moved by turning saidscrew, and means orsecuring said housing against movement when desired.c t l 7. A gauge comprising a frame having an undercut jaw'portion alongone edge, a plate secured to the opposite edge and having a counterpartundercut jaw portion, a

housing having beveled edges that it in said` v jaws of said frame andplate, means for moving said platetoward andaway from said frame, toprevent and to permit movement of the housing, said housing having aprojecting portion overhanging said frame,

a screw in said projecting portion capable of rotation but held againstendwise movement, said frame having a threadedhoie to i receive saidscrew, whereby turning said screw moves said Vhousing when said plate ismovedV awayA from'y said frame.

Y 8. gauge comprising a frame having an undercut jaw portion along oneedge, a

plate secured to the opposite edge and having a counterpart undercut jawportion, a housing having beveled edges that iitfin said jaws of saidframe andplate, means-toimoving said plate toward or away from saidframe, to prevent or to permit movement of' the housing-said housinghaving ak projecting portion overhanging said frame, a screw in saidprojecting portion capableV or' rotation but held against endwisemovement,

OSWALD lSCHLAUPITZ.

